1021000303240 has 64 divisors (see below), whose sum is σ = 2301419419200. Its totient is φ = 407659537152.

The previous prime is 1021000303187. The next prime is 1021000303241. The reversal of 1021000303240 is 423030001201.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1021000303241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78659071 + ... + 78672049.

It is an arithmetic number, because the mean of its divisors is an integer number (35959678425).

Almost surely, 2^{1021000303240} is an apocalyptic number.

1021000303240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1021000303240 is an abundant number, since it is smaller than the sum of its proper divisors (1280419115960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1021000303240 is a wasteful number, since it uses less digits than its factorization.

1021000303240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16406 (or 16402 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 1021000303240 its reverse (423030001201), we get a palindrome (1444030304441).

The spelling of 1021000303240 in words is "one trillion, twenty-one billion, three hundred three thousand, two hundred forty".